JP4244563B2 - Packaging bag - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a packaging bag, particularly a packaging bag for storing a tube enteral nutrient, a tube enteral liquid food, or the like.
[0002]
[Prior art]
Tubes enteral nutrients (hereinafter sometimes abbreviated as nutrients) and tube enteral liquid foods (hereinafter sometimes abbreviated as fluids) are various packaging containers such as cans, paper containers, pouches and bottles. Among them, the pouch type is excellent in sealing and handling properties and is often used. The pouch type generally has a spout, and a tube is connected to the spout for administration. Especially in the case of nutrients, it is diluted according to the patient's condition at the time of initial introduction and used when stable. It is common to replenish deficient drugs and water. If there is only a spout, such operations are not possible or limited, and it is opened by interrupting administration and using the spout as a replenishing port or by cutting off a part of the pouch. There was a need to replenish. This is a complicated work, and there are also problems in hygiene management such as the spout and the opening being contaminated and opening more than necessary.
[0003]
In order to solve the above problems, some have an inlet composed of a detachable cap or the like, but the inlet having a complicated structure is separately formed and attached, and the sealing performance until use is maintained. In addition, there is a problem that the manufacturing process becomes complicated and the cost is increased, for example, an inner seal made of a film or the like is provided inside the inlet.
[0004]
[Problems to be solved by the invention]
An object of the present invention is to provide a packaging bag that can be replenished with moisture from the outside during use, such as drug administration, is excellent in handleability and hygiene management, is easy to manufacture, and is advantageous in cost. To do.
[0005]
[Means for Solving the Problems]
The present invention is a packaging bag formed by sealing the peripheral portions of a plurality of film pieces, the packaging bag having a gusset portion on the bottom surface portion, and a protruding portion facing obliquely upward at one corner of the upper side of the packaging bag. 1 or 2 or more semi-rigid or hard cylindrical bodies are embedded between the film pieces constituting the protrusion, and a spout member is mounted separately from the protrusion, and the spout member is a protrusion. The packaging bag is characterized in that it is provided on a side opposite to the portion and further has a hanging means capable of hanging the packaging bag on the side near the projection .
[0006]
A semi-rigid or hard cylindrical body is embedded and sealed between the film pieces of the protrusions provided on one side of the packaging bag, so that it can be completely sterilized and the inlet is hygienic until the protrusions are opened. It can be easily manufactured at low cost.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
[Embodiment 1]
The packaging bag which is an example of embodiment of this invention is shown in FIGS. 1 is a front view of the packaging bag, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a view showing a state in which the spout member is opened in the packaging bag of FIG. It is an enlarged view of the projection part which forms an inlet_port | entrance. In the packaging bag of FIG. 1, the main body portion 2 of the packaging bag 1 is formed as a seal portion 7 (indicated by hatching in the figure) by sealing the peripheral portions of the three film pieces. As shown in FIG. 2, the main part of the main body is configured with the film pieces 2 a and 2 b facing each other, and only the bottom surface portion 9 is arranged so that the film piece 2 c is interposed between the film pieces 2 a and 2 b, and is a gusset portion. It is formed in a shape. By providing the gusset portion, the self-supporting property of the packaging bag is improved and the accommodation amount is also increased. The contents are filled by filling the contents from the unsealed portion and sealing the unsealed portion after forming another portion with only a part of the upper end portion 8 of the packaging bag as the unsealed portion. In addition, the notch parts 14 and 14 are provided in the side part of the film piece 2c which forms a gusset part for the form stabilization of a packaging bag lower part.
[0008]
One side of the main body portion 2 of the packaging bag 1 is provided with a protrusion 3 at a portion where the planar shape is partially cut out inward. As shown in FIGS. 2 and 4 (a), the protrusion 3 is a semi-rigid or rigid pipe-like cylinder between the film pieces constituting the protrusion (2a and 2b in FIG. 4 (b)). The body 4 is embedded. The cylindrical body 4 is in close contact with each other at the seal portion where the film piece is bent using a pressing die at the time of forming the seal portion (7a, 7a in FIG. Is pressed into close contact with the film piece. When it is necessary to inject water, a diluent, a medicine, etc. at the time of use, a protrusion such as 11 shown in FIG. 2 and FIG. When the tip of the part is removed and opened, the injection port 12 is formed, and the injection is performed from the injection port 12 into the packaging bag. The packaging bag 1 is provided with a notch 13 as an opening means on one side of the seal portion on the side of the protruding portion 3 so that it can be easily opened by hand. Moreover, the lower part 10 of the protrusion part 3 is formed in the shape which the film piece swelled outside, and when an injection port is formed, replenishment from the outside to the inside of the package body becomes easy.
[0009]
A spout member 5 is attached to the packaging bag 1 at a position facing the projection 3. The spout member 5 serves as a spout when opened, and is used to pour out the contents to the outside by connecting a tube or the like to the spout. As shown in FIG. 3, the spout member 5 is a member formed integrally with a mounting portion 5 c having a thin boat shape at both ends for attaching to the packaging bag body, and a hollow tube 5 b serving as a spout, It is comprised from the cap 5a fitted to it, and the attaching part 5c is attached to a packaging bag main body by heat bonding etc. The distal end portion of the tube 5b is sealed with a sealing material to be sealed, and the cap 5a is attached from the viewpoint of protection of the seal portion and hygiene management. The unsealing for dispensing is performed by removing the cap 5a and peeling off the sealing material.
[0010]
The packaging bag 1 further has a through-hole 6 penetrating the film piece as a suspending means capable of suspending the packaging bag in the seal portion in the vicinity of the protrusion 3. By hanging the packaging bag 1 by hooking a jig in the through-hole 6, the spout member 5 is disposed below, and the items to be dispensed from the spout member 5 and the protrusions disposed above are disposed. Replenishment from the inlet 12 formed by opening the portion 3 is facilitated.
[0011]
[Embodiment 2]
FIG. 5 shows an enlarged view of the protruding portion of the packaging bag which is another example of the embodiment of the present invention. This packaging bag has the same configuration as that of the packaging bag of the first embodiment except for the configuration of the cylindrical body in the protruding portion. That is, two ring-shaped cylinders 24 and 24 'are used as the cylinder. The cylindrical bodies 24, 24 ′ are arranged between the film pieces (22a, 22b in FIG. 5B) in a state where they are separated from each other by a predetermined distance. At the time of forming the seal part (17a, 17a in FIG. 5B), the film piece is pressed to be in close contact with each other at the place where the film piece is bent using a pressing die, and is in close contact with the film piece. The space between the cylindrical bodies 24 and 24 'is formed hollow. When it is necessary to inject water, a diluent, a medicine, etc. during use, a portion such as 31 shown in FIG. When the tip is removed and opened, the inlet 32 is formed. Notches 33 and 33 'are provided as opening means on both sides of the seal portion on the side of the protrusion. By adopting such a configuration of the protrusion, the cylindrical body has less contact with the film piece, and when the cylindrical body is pressed against the film piece, the cylindrical part is present, particularly the film piece is damaged during sealing. Even if damage occurs, it is easy to find damage because there are many exposed parts inside the film piece when inspecting for air leakage to prevent leakage when filling the contents. .
[0012]
When the cylindrical body has a plurality of ring shapes, the rings may be connected to each other. As such a shape, for example, as shown in FIG. 6, two rings 44 and 44 ′ are integrally connected by two connecting rods 45 and 45 ′, or three rings 54 and 54 ′. , 54 ″ are integrally connected by a connecting rod 55.
[0013]
In the present invention, the material constituting the semi-rigid or rigid cylindrical body embedded between the film pieces constituting the protrusions is not particularly limited as long as it has a desired hardness without affecting the contents. For example, medium density Alternatively, a high-density polyethylene-based resin, polypropylene-based resin, polyvinyl chloride-based resin, or the like can be used. However, when retorting is performed after filling the contents, it is preferable to use a polypropylene-based resin having excellent heat resistance. These materials are formed into a cylindrical body by an injection molding method or the like. As in the second embodiment, when the cylindrical body has a plurality of ring shapes and the rings are coupled to each other, the coupling member for coupling is also made of the same material as the ring and is integrally molded. preferable.
[0014]
The size (length in the longitudinal direction, outer diameter, inner diameter) of the cylindrical body is not particularly limited, and may be set as appropriate in accordance with the type of stored item and the usage pattern. The packaging bag of the present invention has a cylindrical body as the injection port, so that the inner diameter of the injection port can be increased while maintaining sealing until opening, and even when replenishing from outside using a medicine can etc. Easy to inject. Moreover, when enlarging the internal diameter of a cylindrical body, it is preferable that a cross-sectional shape is made into an ellipse from the point of the intensity | strength of a cylindrical body. When the cylindrical body has a plurality of ring shapes, the longitudinal length of the cylindrical body is the distance from the outer end of the packaging bag of the ring 24 to the inner end of the packaging bag of the ring 24 ′ in the second embodiment. In all the rings after arrangement, the distance between the outer end of the packaging bag and the inner end of the packaging bag is indicated. In the present invention, the length of the cylindrical body in the longitudinal direction is preferably 10 to 30 mm. Further, the outer diameter and inner diameter of the cylindrical body are preferably 10 to 20 mm in outer diameter and 8 to 18 mm in inner diameter. Further, the thickness of the cylindrical body (difference between the outer diameter and the inner diameter) is preferably 0.5 to 1.5 mm. When the cylindrical body has a plurality of ring shapes, the width (length in the longitudinal direction) of the ring is not particularly limited, but is preferably 0.5 to 2.0 mm. Furthermore, when the cylindrical body has a plurality of ring shapes, the inner diameter, outer diameter, and width of each ring may be different.
[0015]
The method of embedding a cylindrical body between the film pieces constituting the protrusion and closely contacting the film pieces may be performed in accordance with the sealing method of the periphery of the film piece in the packaging bag body, for example, the film piece is a sealant layer. When sealing is performed by thermal bonding, a cylindrical body is disposed at a predetermined position between the film pieces constituting the protrusion, and the film pieces can be thermally bonded and embedded by heating and pressing using a pressing die.
[0016]
When the cylindrical body is embedded, the sealing state near the cylindrical body is such that when the injection port is formed, the cylindrical body is fixed to the packaging bag, and there is a passage through which the contents inside the packaging body can be replenished from the outside. If it forms, it will not specifically limit. That is, the peripheral part of the film piece should just be sealed between the cylindrical body and the film piece and at the protrusion. In addition, the lower portion of the protrusion is as shown in the above embodiment by using a pressing die or the like when the cylindrical body is fixed so that it is easy to replenish the contents inside the package body from the outside when the injection port is formed. A thin film piece may be formed in a shape bulging outward.
[0017]
In this invention, the constituent material of the some film piece which comprises a packaging bag main body is not specifically limited, The material conventionally used for the pouch can be used. Examples of such materials include, as a base material, various films such as a biaxially stretched polyolefin resin film, a biaxially stretched polyamide resin film, a biaxially stretched polyester resin film, and an ethylene-vinyl alcohol copolymer film. Examples of these base materials include low-density polyethylene, linear low-density polyethylene, ethylene-vinyl acetate copolymer, and composite films obtained by laminating an olefin-based thermal adhesive resin such as polypropylene as a sealant layer. From the standpoint of enhancing the protection of the contents, a film obtained by further laminating a single layer film or a plurality of composite films, or a film obtained by laminating silica, aluminum oxide, or the like can be used. In particular, when a film obtained by laminating an aluminum oxide layer on a laminated film of biaxially stretched polyethylene terephthalate or biaxially stretched polyamide is used as a base material, it has excellent barrier properties and aroma retention, and a pinhole tester or metal detector after filling. And heating with microwaves are also possible. Thickness after filling can be generally 30 to 150 μm, and the overall size can also be set appropriately according to the capacity. The packaging bag body is formed by sealing the peripheral part by heat bonding of the sealant layer according to the structure of the film piece.
[0018]
The shape of the main body of the packaging bag of the present invention is not particularly limited as long as a peripheral portion of a plurality of film pieces is sealed, and a protrusion for embedding a cylindrical body is provided on one side, as in Embodiment 1 above. In addition to sealing the periphery of two film pieces, providing a gusset on the bottom, and making it gusseted, the shape of only sealing the periphery of two film pieces, or one or both side surfaces Alternatively, a gusset portion may be provided on the top surface portion to increase the storage capacity.
[0019]
When forming the main body of the packaging bag of the present invention, there is no particular limitation as long as the seal shape and seal width of the peripheral part of the film piece can be sealed, and it is possible to form a hanging hole or hooking part as in the above embodiment As such, the shape and width may be changed.
[0020]
Although the packaging bag of this invention should just form the projection part which embeds a cylindrical body, it is preferable to have an opening means in a projection part so that opening may be easy. As a means for unsealing, in addition to a method of providing a notch on one side or both sides of the sealing portion of the cylindrical body side as in the above embodiment, a method of providing a thin-walled portion by a laser beam or perforation as in the above embodiment These may be mentioned, and these may be combined. Further, as a mark when opening with scissors or the like, a planned opening line may be formed by printing or the like.
[0021]
The packaging bag of the present invention preferably has hanging means that can be hung on the packaging bag because it is used by being hung when it is used to accommodate a tube enteral nutrient or a tube enteral liquid food. As the hanging means, a through hole may be formed in the seal portion as in the above embodiment, or a hanging tool such as a hook formed separately may be attached. A plurality of these suspending means may be provided, and the arrangement thereof is not limited, but at least from the state in use, the suspending means is provided in the vicinity of the projecting portion, while the spout member is provided as the projecting portion. It is preferable to provide in the position which opposes. By setting it as such an arrangement | positioning, the replenishment from the injection port formed by extraction of the accommodation thing from a spout member and opening of a projection part becomes easy.
[0022]
In the packaging bag of the present invention, the shape and constituent material of the spout member are not particularly limited, and those commonly used can be used, and the attachment portion attached to the packaging bag body and the hollow tube serving as the spout are integrated. What was shape | molded is preferable. The attachment part is attached to the packaging bag body by thermal bonding or the like, but it is preferable that both ends have a thin boat shape. The spout is sealed by sealing the end with heat, fitting or screwing a lid or cap, sealing with a sealing material, or the like.
[0023]
The packaging bag of the present invention is used as follows. After forming only a part of the upper end portion of the packaging bag as an unsealed portion and other portions by fusion or the like, the contents are filled from the unsealed portion, and the unfused portion is sealed. Thereafter, retort sterilization or high-temperature instantaneous sterilization is performed as necessary. When these processes need to be performed, the material of the film piece, the cylindrical body, and the spout member constituting the packaging bag is selected in advance accordingly. At the time of pouring out the contents, as in the first embodiment, it is suspended by the suspending means, the spout is opened, a tube or the like is connected, and the contents are extracted. On the other hand, water, a diluent, a medicine, etc. are cut by opening a film piece outside the cylindrical body-embedded portion of the protrusion, and are injected into the inside of the packaging bag through the formed inlet.
[0024]
The packaging bag of the present invention is used when there is a possibility of injecting liquid or the like from the outside in addition to the dispensing of the contents. It is particularly suitable as a tube enteral fluid food.
[0025]
【Example】
A laminated film in which a 12 μm thick polyethylene terephthalate film, a 15 μm thick polyamide film, a heat-resistant aluminum oxide (Al ₃ O ₂ ) thin film, and a polypropylene film are sequentially laminated via an adhesive layer is shown in FIG. A laminated film obtained by sequentially laminating a silica-deposited polyester film, a polyamide film having a thickness of 15 μm, and a polypropylene film through an adhesive layer on the film pieces 2a and 2b in the packaging bag constitutes the gusset portion in the packaging bag of FIG. Using the film piece 2c, the peripheral part was heat-sealed with the polypropylene film side as the sealant layer, and the packaging bag 1 having the same configuration as that of FIG. 1 was produced. At that time, a pipe-shaped cylindrical body 4 made of polypropylene resin having an inner diameter of 12 mm and an outer diameter of 15 mm and having an elliptical cross-section is embedded in the protrusion 3 and thermally bonded. The outlet member 5 was thermally bonded so that the attachment portion 5c was sandwiched between film pieces. A notch 13 is formed in the protrusion 3 by punching, and a penetrating hole 6 is formed by punching one piece having a large seal width as a hanging means. The size of the packaging bag was approximately 160 mm in width (the width of the accommodating portion was approximately 110 mm), 240 mm in height, 40 mm in the maximum height of the gusset portion, 5 mm in the seal width, and 35 mm in the through hole forming portion. The width of the protrusion was 22 mm, and the through hole was an ellipse having a major axis of 24 mm and a minor axis of 18 mm. The upper part of the packaging bag was an unsealed part, and after filling the contents, it was fused and sealed by heat sealing. A jig is hooked into the through-hole 6 to suspend the packaging bag 1, the spout member 5 is opened and the contents are poured out, while the tip of the protrusion 3 is cut off from the notch 13 and removed. The inlet 12 was formed, and the inside of the packaging bag was supplied from the inlet 12.
[0026]
【The invention's effect】
The packaging bag of the present invention is provided with a protrusion on one side, and an injection port can be formed by embedding one or two or more semi-rigid or hard cylindrical bodies between the film pieces constituting the protrusion, Water can be replenished from the outside during use, such as when administering drugs, and the injection port is formed and sealed with a cylindrical body, so it can be completely sterilized. The entrance is kept hygienic, excellent in handleability and hygiene management, is easy to manufacture, and is advantageous in terms of cost.
[Brief description of the drawings]
FIG. 1 is a front view of a packaging bag as an example of an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the packaging bag of FIG. 1 along AA.
3 is a view showing a state in which the spout member is opened in the packaging bag of FIG. 1. FIG.
4 (a) is an enlarged view of a protrusion in the packaging bag of FIG. 1, and FIG. 4 (b) is a cross-sectional view taken along line BB in FIG. 4 (a).
5 (a) is an enlarged view of a protrusion in a packaging bag as another example of the embodiment of the present invention, and FIG. 5 (b) is a cross-sectional view taken along the line CC in FIG. 5 (a). FIG.
FIG. 6 is a diagram showing another example of the shape of a cylindrical body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Packaging bag main body 3 Protruding part 4 Cylindrical body 5 Outlet member 6 Hanging means 7 Sealing part 8 Packaging bag main body upper part 9 Packaging bag main body bottom part

Claims (8)

A packaging bag formed by sealing the periphery of a plurality of film pieces, the packaging bag having a gusset portion on a bottom surface portion, and a protrusion portion facing obliquely upward provided at one corner of the upper side of the packaging bag. One or two or more semi-rigid or hard cylindrical bodies are embedded between the film pieces constituting the portion, and a spout member is mounted separately from the protrusion, and the spout member opposes the protrusion. A packaging bag, characterized in that the packaging bag has a hanging means provided on the side and capable of hanging the packaging bag on a side near the protrusion . The packaging bag according to claim 1, wherein the cylindrical body is made of polypropylene resin. The packaging bag according to claim 1, wherein the cylindrical body has a pipe shape. The packaging bag according to claim 1, wherein the cylindrical body has a ring shape. The packaging bag according to claim 4, wherein the cylindrical body has a plurality of ring shapes, and the rings are connected to each other. The packaging bag according to any one of claims 1 to 5 , wherein the protrusion has an opening means. The packaging bag according to any one of claims 1 to 6 , wherein the packaging bag is for transluminal enteral liquid food. The packaging bag according to any one of claims 1 to 6 , wherein the packaging bag is for a tube enteral nutrient.

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